135928520 has 128 divisors (see below), whose sum is σ = 381024000. Its totient is φ = 42494976.

The previous prime is 135928501. The next prime is 135928531. The reversal of 135928520 is 25829531.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389306 + ... + 389654.

It is an arithmetic number, because the mean of its divisors is an integer number (2976750).

Almost surely, 2^135928520 is an apocalyptic number.

135928520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135928520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190512000).

135928520 is an abundant number, since it is smaller than the sum of its proper divisors (245095480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135928520 is a wasteful number, since it uses less digits than its factorization.

135928520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 135928520 is about 11658.8387071783. The cubic root of 135928520 is about 514.1662066524.

The spelling of 135928520 in words is "one hundred thirty-five million, nine hundred twenty-eight thousand, five hundred twenty".